On 6 Apr 2003, at 3:57, jim barchuk wrote: > At 115k the first line *always* drops several of chars *before* the first > CRLF. Never the same chars. The rest of the screen is almost always > flawless, drops a few here and there, only about 2-3% of full screens have > an error. But I can induce a few more drops by making Win 'do something' > such as switching to other windows. I can see behind what I switch to that > chars are dropped, and capture to log to make sure they really are > dropped. Overall is obviously not working well. > > At 38k I grabbed 500k while doing several windows Find searches, reading > email, 'cat'ting a few meg through PuTTY, and using a text editor in a DOS > box. The drive, screen, and system in general was doing a lot of stuff but > the capture was -perfect-. > > So the Q is whether it's *remotely* *possible* that these nonpolariZed > caps could cause these errors? > > I don't want to change them if it's less than likely to fix anything; I'd > chalk it up to Win and live with the 38k. I have not followed the thread about caps but basically what you are up against is Windows - as you have so well proven. If you MUST use windows then handshaking is essential at high speeds to avoid overruns. regards, George Smith -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu